基于定子磁链定向的异步电动机准比例谐振控制

Quasi-Proportional-Resonant Control of Induction Motor Based on Stator Flux Orientated

针对直接转矩控制和转子磁链定向控制的不足,从异步电动机的数学模型分析出发,提出了一种新型的异步电动机按定子磁链定向的控制方法;同时,系统引入了准比例谐振控制器(QPR),它克服了PI控制器的缺点,能够在静止坐标系下无静差的跟踪交流信号;经过MATLAB/Simulink仿真验证,在该控制方法下,电机转矩脉动小、定子电流谐波含量少,系统具有良好的动态性能。

For tproportional-resonant（QPR） was introduced into the control system, which overcomes the deficiency of the PI and can realize no static error adjustment tracking the AC signal in the stationary coordinatesystem. Proved through the simulation using MATLAB/ Simulink, the program can maintain a fast dynamic response characteristics as well as a little torque ripple, but also a little harmonic in stator current.